Big trees three or more feet in diameter accounted for nearly half the biomass measured at a Yosemite National Park site, yet represented only one percent of the trees growing there.
Environment
May 2, 2012
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The enigmatic Tasmanian tiger, known also as the thylacine, was hunted to extinction in the wild at the turn of the 20th century, and the last one died in a Tasmanian zoo in 1936.
Plants & Animals
Apr 18, 2012
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An analysis of the remains of ancient midges – tiny non-biting insects closely related to mosquitoes – opens a new window on the past with a detailed view of the surprising regional variability that accompanied ...
Earth Sciences
Nov 14, 2011
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An international team of scientists, led by Dr Stephen Barker of Cardiff University, has produced a prediction of what climate records from Greenland might look like over the last 800,000 years.
Earth Sciences
Sep 8, 2011
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Although Arctic sea ice appears fated to melt as the climate continues to warm, the ice may temporarily stabilize or somewhat expand at times over the next few decades, new research indicates.
Earth Sciences
Aug 11, 2011
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For 20 000 years, climate variability in East Africa has been following a pattern that is evidently a remote effect of the ENSO phenomenon (El Niño Southern Oscillation) known as El Niño/La Niña. During the ...
Earth Sciences
Aug 4, 2011
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How does the power output from solar panels fluctuate when the clouds roll in? And can researchers predict these fluctuations? UC San Diego Professor Jan Kleissl and Matthew Lave, a Ph.D. student in the Department of Mechanical ...
Energy & Green Tech
Jun 21, 2011
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(PhysOrg.com) -- Researchers have discovered 122 new eclipsing binary stars and observed hundreds more variable stars in an innovative survey using NASA's two STEREO solar satellites. The survey has been carried out by team ...
Astronomy
Apr 20, 2011
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The vivid red cloud in this new image from ESO's Very Large Telescope is a region of glowing hydrogen surrounding the star cluster NGC 371. This stellar nursery lies in our neighboring galaxy, the Small Magellanic Cloud.
Astronomy
Mar 30, 2011
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Tiny organisms preserved in marine sediments hold clues about Arctic climate variation during an ancient episode of greenhouse warming.
Earth Sciences
Feb 11, 2011
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